How to stop WhatsApp from sharing your number with Facebook

How do I stop WhatsApp from sharing my phone number with Facebook? WhatsApp has an in-app opt out option. Here's how you tell WhatsApp, "no way"!

WhatsApp says it plans to start sharing your phone number and other account information with Facebook in order to "improve your Facebook ads and products experiences." The messaging service revised its Terms of Service and Privacy Policy to include information on how Facebook will use your information:

Facebook and the other companies in the Facebook family also may use information from us to improve your experiences within their services such as making product suggestions (for example, of friends or connections, or of interesting content) and showing relevant offers and ads.

I don't see the option, I've not even been informed of a terms update. Typically the same **** poor management by the whatsapp team as their past rollouts for example the "charge, not charge, only charge users who didn't pay for the app, abolish charges altogether"

Ok, here is what I did. Delete your account (I only recently signed up because of a friend traveling overseas - so I didn't care that everything was going to be deleted). Then sign in. DON'T BE LAZY (like I was last time) and sign up with Facebook. That removes the option to opt out because you are already using Facebook for your account.

Hmmm, I don't see that option either. I seem to be using the latest version and I'm not on iOS 10. Are they hiding it so I don't have an option? That'll be quick way to get me to close my WhatsApp account.

I have no official confirmation, but from my tests, if you signed up for your WhatsApp account with your Facebook account (signing up that way with WhatsApp is actually called the "lazy way" in the app), you don't have this option. If you did not sign up this way you have it.

Of course right after I posted my reply here, I opened WhatsApp and was greeted with the new terms of service agreement and the option to opt out (which I promptly did). WhatsApp must be slowly rolling out the agreement to users. So, I guess just be patient and wait for the agreement to show up.

Hi, I managed to turn sharing off on the 26 Aug. There is a need to restore my iphone and i restore it using my 22 Aug backup. I am unable to turn sharing off when the iphone was restored. There is no updated permission requested or "read updated policy" option. Whatsapp is installed with its latest version(updated on 15 aug) and i am unable to select anything. The only option is "agree and continue".
i tried to click on the terms and conditions, it would bring me to whatsapp terms and condition link on safari. and there is no option to opt out. Please advise as i have no idea if i'm already opt out or because it is a new installation/restoration of whatsapp, it is not considered as existing users.
Thanks in advance